Is there a way to set the following header to enable CORS to a specific domain?

"Access-Control-Allow-Origin", "specific.domain.com"

You can add any HTTP header by using the table "Custom HTTP Headers" described in [http://www.aprelium.com/data/doc/2/abyssws-win-doc-html/hosts-configuration.html#HOSTS-GENERAL-ADVANCED-CUSTOMHEADERS]._________________Support Team
Aprelium - http://www.aprelium.com